<template>
    <div>
         <el-breadcrumb >
           <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
           <el-breadcrumb-item>权限管理</el-breadcrumb-item>
            <el-breadcrumb-item>角色列表</el-breadcrumb-item>
       </el-breadcrumb>
       <el-card>
           <el-row >
               <el-col >
                   <el-button type="primary"  @click="addDialogVisible=true">添加角色</el-button>
               </el-col>
           </el-row>
            
            <el-table :data="rolesList" border stripe>
                <el-table-column type="expand" label="#">
                    <template slot-scope="scope">
                        <el-row  :class="['bdbottom', i1 === 0 ? 'bdtop': '', 'vcenter']" v-for="(item1, i1) in scope.row.children" :key="item1.id">
                          <el-col :span="5">
                                <el-tag closable
                                @close="removeRightById(scope.row, item1.id)"
                                >{{item1.authName}}</el-tag>
                                <i class="el-icon-caret-right"></i>
                          </el-col>
                          <el-col :span="19">
                            <el-row :class="[i2 === 0 ? '': 'bdtop','vcenter']" v-for="(item2, i2) in item1.children" :key="item2.id">
                                <el-col :span="6">
                                    <el-tag type="success" closable
                                    @close="removeRightById(scope.row, item2.id)"
                                    >{{item1.authName}}</el-tag>
                                    <i class="el-icon-caret-right"></i>
                                </el-col>
                                 <el-col :span="18">
                                    <el-tag type="warning" v-for="(item3) in item2.children" :key="item3.id"
                                    closable @close="removeRightById(scope.row, item3.id)"
                                    >{{item3.authName}}</el-tag>
                                 </el-col>
                            </el-row>
                          </el-col>
                        </el-row>
                        <!-- <pre>
                            {{scope.row}}
                        </pre> -->
                    </template>
                </el-table-column>
                <el-table-column type="index" label="#"></el-table-column>
                <el-table-column prop="roleName" label="角色名称"></el-table-column>
                <el-table-column prop="roleDesc" label="角色描述"></el-table-column>
                <el-table-column label="操作" width="500px">
                    <template slot-scope="scope">
                        <el-button type="primary" size="mini" icon="el-icon-edit" @click="showEditDialog(scope.row.id)">编辑</el-button>
                        <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeRoleById(scope.row.id)">删除</el-button>
                        <el-button type="warning" size="mini" icon="el-icon-setting"
                        @click="showSetRightDialog(scope.row)"
                        >分配权限</el-button>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 添加角色 -->
            <el-dialog
                title="添加角色"
                :visible.sync="addDialogVisible"
                width="50%"
                @close= "addDialogClose"
                >
                <el-form :model="addRoleForm" 
                :rules="addRoleFormRules" 
                ref="addRoleFormRef"
                label-width="100px"
                >
                    <el-form-item label="角色名称" prop="roleName">
                        <el-input v-model="addRoleForm.roleName"></el-input>
                    </el-form-item>
                    <el-form-item label="角色描述" prop="roleDesc">
                        <el-input v-model="addRoleForm.roleDesc"></el-input>
                    </el-form-item>
                </el-form>
                <span slot="footer" class="dialog-footer">
                    <el-button @click="addDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="addRole">确 定</el-button>
                </span>
            </el-dialog>
            <!-- 修改角色 -->
            <el-dialog
                title="修改角色"
                :visible.sync="editDialogVisible"
                width="50%"
                @close= "editDialogClose"
                >
                <el-form :model="editRoleForm" 
                :rules="editRoleFormRules" 
                ref="editRoleFormRef"
                label-width="100px"
                >
                    <el-form-item label="角色名称" prop="roleName">
                        <el-input v-model="editRoleForm.roleName"></el-input>
                    </el-form-item>
                    <el-form-item label="角色描述" prop="roleDesc">
                        <el-input v-model="editRoleForm.roleDesc"></el-input>
                    </el-form-item>
                </el-form>
                <span slot="footer" class="dialog-footer">
                    <el-button @click="editDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="editRoleInfo">确 定</el-button>
                </span>
            </el-dialog>

             <el-dialog
                title="分配权限"
                :visible.sync="setRightDialogVisible"
                width="50%"
                @close="setRightDialogClosed"
                >
                <!-- 树控 -->
                <el-tree :data="rightList" :props="treeProps" show-checkbox node-key="id" default-expand-all :default-checked-keys="defKeys" ref="treeRef"></el-tree>
                <span slot="footer" class="dialog-footer">
                    <el-button @click="setRightDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="allotRights">确 定</el-button>
                </span>
            </el-dialog>


       </el-card>
    </div>
</template>

<script>
export default {
    data(){
        return{
            rolesList:[],
            addDialogVisible:false,
            addRoleForm:{
                roleName:'',
                roleDesc:''
            },
            addRoleFormRules:{
                roleName:[
                    {required: true, message:'请输入角色名称', trigger: 'blur'},
                    {min:2, max:10, message:'用户名长度在2~10字符之间',trigger: 'blur'}
                ],
                roleDesc:[
                    {required: true, message:'请输入角色描述', trigger: 'blur'},
                    {min:2, max:20, message:'用户名长度在2~20字符之间',trigger: 'blur'}
                ],
            },
            editDialogVisible:false,
            editRoleForm:{},
            editRoleFormRules:{
                    roleName:[
                    {required: true, message:'请输入角色名称', trigger: 'blur'},
                    {min:2, max:10, message:'用户名长度在2~10字符之间',trigger: 'blur'}
                ],
                roleDesc:[
                    {required: true, message:'请输入角色描述', trigger: 'blur'},
                    {min:2, max:20, message:'用户名长度在2~20字符之间',trigger: 'blur'}
                ],
            },

            setRightDialogVisible:false,
            rightList:[],
            treeProps:{
                label:'authName',
                children:'children'
            },
            defKeys:[],
            //当前分配权限的角色id
            roleId:''

        }
    },
    created(){ 
        this.getRolesList()
    },
    methods:{
        async getRolesList() {
            const{ data:res } = await this.$http.get('roles')
            if(res.meta.status !==200){
                return this.$message.error('获取权限列表失败!')
            }
            this.rolesList = res.data
            // console.log(this.rolesList);
        },
         addDialogClose(){
            this.$refs.addRoleFormRef.resetFields()
        },
         async showEditDialog(id){
            const{data:res} = await this.$http.get('roles/' + id)
             if(res.meta.status !== 200){
                    this.$message.error('查询用户失败!')
                }
            this.editRoleForm =  res.data
            // console.log(this.editRoleForm);
            this.editDialogVisible =true
        },
        editDialogClose(){
            this.$refs.editRoleFormRef.resetFields()
        },
        addRole(){
            this.$refs.addRoleFormRef.validate(async valid =>{
                // console.log(valid);
                if(!valid) return
                const { data: res } = await this.$http.post('roles', this.addRoleForm)
                if(res.meta.status !== 201){
                    this.$message.error('添加角色失败!')
                }
                this.$message.success('添加角色成功!')
                this.addDialogVisible = false
                this.getRolesList()
            } )
        },
        editRoleInfo(){
            // console.log(this.editRoleForm.id)
            this.$refs.editRoleFormRef.validate(async valid =>{
                if(!valid) return
                const { data: res } = await this.$http.put('roles/' + this.editRoleForm.roleId, {
                    roleName: this.editRoleForm.roleName,
                    roleDesc: this.editRoleForm.roleDesc
                })
                // console.log(res);
                if(res.meta.status !== 200){
                    return this.$message.error('更新用户信息失败!')
                }
                this.editDialogVisible =false
                this.getRolesList()
                this.$message.success('更新用户信息成功!')
            })
        },
        async removeRoleById(id){
            const confirmResult =  await this.$confirm('此操作将永久删除该角色, 是否继续?', '提示', {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning',
            center: true
            
            }).catch(err=> {
                return err
            })
            if (confirmResult !== 'confirm'){
                return this.$message.info('已取消删除')
            }
            const {data:res} = await this.$http.delete('Roles/'+id)
            if(res.meta.status !== 200){
                return this.$message.error('删除角色失败!')
            }
            this.$message.success('删除角色成功!')
            this.getRolesList()
        },

        async removeRightById(role, rightId){
            const confurmResult = await this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
                }).catch(err => err)

            if(confurmResult !== 'confirm'){
                return this.$message.info('取消了删除')
            }

            const {data:res} = await this.$http.delete(`roles/${role.id}/rights/${rightId}`)

            if(res.meta.status !== 200) {
                return this.$message.error('删除权限失败')
            }
            role.children = res.data
        },
        //展示分配权限对话框
        async showSetRightDialog(role){
            this.roleId = role.id
            const {data: res } = await this.$http.get('rights/tree')
            
            if(res.meta.status !== 200){
                return this.$message.error('获取权限失败')
            }
            this.rightList = res.data
            // console.log(this.rightList);
            this.getLeafKeys(role, this.defKeys)
            this.setRightDialogVisible =true
        },
        //
        getLeafKeys(node, arr){
            if(!node.children){
                return arr.push(node.id)
            }
            node.children.forEach(item =>
            this.getLeafKeys(item,arr))
        },

        //展示分配权限对话框
        setRightDialogClosed(){
            this.defKeys = []
        },
        //点击角色分配确定
        async allotRights(){
            const keys = [
                ...this.$refs.treeRef.getCheckedKeys(),
                ...this.$refs.treeRef.getHalfCheckedKeys()
            ]
            // console.log(keys)

            const idStr = keys.join(',')
            // console.log(idStr)
            
            const {data: res} = await this.$http.post(`roles/${this.roleId}/rights`,{rids: idStr})

            if(res.meta.status !==200){
                return this.$message.error('分配权限失败！')
            }

            this.$message.success('分配权限成功！')

            this.getRolesList()
            this.setRightDialogVisible = false
        }

    }
}
</script>

<style lang="less" scoped>
    .el-tag{
        margin: 15px;
    }
    .bdtop{
        border-top: 1px solid #eee;
    }
    .bdbottom{
        border-bottom: 1px solid #eee;
    }
    .vcenter{
        display: flex;
        align-items: center;
    }
</style>